What region are Hawaii and Alaska in? What regions are the Great Lakes located in?
What region has cool summers?

As our current atmosphere formed, the concentrations of various atmospheric gases fluctuated. match each gas with the explanation that best describes how its proportion changed during the evolution of the atmosphere.

Prices for products became more affordable as a result of new forms of ,witch got things to market faster and cheaper

What do you call places that belong to united states but arent states